Burnishing?

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BobShirleyAtlantaTx
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Burnishing?

Post by BobShirleyAtlantaTx » Thu May 09, 2019 10:08 am

30909DAA-16A7-4681-9D1A-E446E7645E4A.jpeg
Please show the set-up you use to run your shaft in.

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Mark Gregush
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Re: Burnishing?

Post by Mark Gregush » Thu May 09, 2019 10:35 am

I blue/scrape any high spots and use Timesaver to set my rods and crank.
I know the voices aren't real but damn they have some good ideas! :roll:

1921 Huckster
1925 Cut down pickup

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D.Yoder
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Re: Burnishing?

Post by D.Yoder » Thu May 09, 2019 10:40 am

Timesaver run in
Timesaver run in


Mark Osterman
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Re: Burnishing?

Post by Mark Osterman » Thu May 09, 2019 10:48 am

I know what you mean by using the word burnishing for this but if there is an abrasive being used .. it’s something else. Even though the abrasive is fine you are grinding. I use burnishing two ways in my day job; gold leaf and putting a glossy surface on albumen photographic prints. In both cases the object to be burnished is rubbed with a tool only to make the surface smoother.

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Ruxstel24
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Re: Burnishing?

Post by Ruxstel24 » Thu May 09, 2019 10:58 am

Burnishing to me means "heat"...
I recall the term mostly in automatic transmission clutch plates. Some rebuilders will slip the clutches purposely, after a rebuild to smooth out the clutches. Supposedly this helps with smoother shifts/clutch application.
Not a big believer myself.

Torque converter lock-up clutches on some vehicles, had a break-in procedure that was activated through the computer to basically slip the clutch for a couple hundred miles after replacing a converter.


Adam
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Re: Burnishing?

Post by Adam » Thu May 09, 2019 11:14 am

Burnishing or running in is not necessary if the surface finish and dimensional tolerances of the crankshaft and main bearings is good.

“Running In” as Ford specified was to correct the fits and tolerances in case the machining was sloppy. In most cases it was. The act of “liberally oiling the bearings and running in the mains until the bearings smoke” was to provide a fairly precise fit without high precision measuring, without high precision machining, and with only a moderately skilled mechanic doing the work. The temperature that the oil smokes at is the temperature that the journal has expanded enough to provide proper oil clearance once everything has cooled.

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HornsRus
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Re: Burnishing?

Post by HornsRus » Thu May 09, 2019 12:16 pm

i guess i could use this!!!!!!!!!charley
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burn in mach 2 003.JPG

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Re: Burnishing?

Post by D.Yoder » Thu May 09, 2019 6:43 pm

Charley I like it more pictures please :D

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HornsRus
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Re: Burnishing?

Post by HornsRus » Thu May 09, 2019 6:56 pm

ok.charley
Attachments
motor stand.jpg
motor stand.jpg (20.71 KiB) Viewed 1739 times
burn in mach 2 002.JPG
burn in mach 2 001.JPG


Adam
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Re: Burnishing?

Post by Adam » Thu May 09, 2019 8:35 pm

Where is it? It needs to go to the Model T Museum!

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HornsRus
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Re: Burnishing?

Post by HornsRus » Thu May 09, 2019 9:56 pm

don't worry about it it is in my museum.ha ha. charley

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JWalters
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Re: Burnishing?

Post by JWalters » Fri May 10, 2019 12:50 am

HornsRus wrote:
Thu May 09, 2019 9:56 pm
don't worry about it it is in my museum.ha ha. charley
Image
It's just waiting for Charley to decide to scrap it. :roll: What a shame.

Image
Jason Walters
Image


Dan Hatch
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Re: Burnishing?

Post by Dan Hatch » Fri May 10, 2019 6:54 am

Charley: Email went. Thanks, Dan

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HornsRus
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Re: Burnishing?

Post by HornsRus » Fri May 10, 2019 7:15 am

scrap maybe not,as i have been offered $5000.00 for it.oh looks like sandblast and go to work. charley


Kerry
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Re: Burnishing?

Post by Kerry » Fri May 10, 2019 8:13 am

How is it driven? is it flat belt on the drum or are the inturnals of the drum an electric motor?
This diagram shows the complete engine has a fuel line, is the engine being driven or for driving?

img292.jpg

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HornsRus
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Re: Burnishing?

Post by HornsRus » Fri May 10, 2019 10:08 am

it is run off line shaft,but motor can do the work, also motor can be started with it. charley


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Re: Burnishing?

Post by Adam » Fri May 10, 2019 10:41 am

If the engine was driving the crank in the bare block as shown in the picture, it would be turning the crankshaft in the wrong direction.

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HornsRus
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Re: Burnishing?

Post by HornsRus » Fri May 10, 2019 11:32 am

do you think it would matter??????????? charley


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Re: Burnishing?

Post by Kerry » Fri May 10, 2019 5:32 pm

Found an original ad, my question answered, for running in the complete engine as well, neat tool wish I had one :cry:
img390.jpg

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HornsRus
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Re: Burnishing?

Post by HornsRus » Fri May 10, 2019 8:21 pm

kerry i saved mine from the scrapman 30 years ago at an auction for $60.00.maybe you will get lucky to.charley


Randall strickland
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Re: Burnishing?

Post by Randall strickland » Thu May 30, 2019 10:15 am

Not exactly burnishing but I do like to run in !
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E6DFBE8B-0EE4-43E6-94EC-D8CB6BFAC9B6.jpeg
446837DB-D01C-428F-B644-3D5A7A53293D.jpeg


Bill Crosby
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Re: Burnishing?

Post by Bill Crosby » Thu May 30, 2019 6:13 pm

After I finish line boring I burnish the Bearings to the crank with time saver in the same setup.

Take a look @ www.youtube.com/watch?v=pJRMptqPNB4

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